Schedule: the flights that flew on Wednesday, Oct 21, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4303
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 28 Tomorrow
WN 4303 · DEN → SFO
departs 8:42 AM MT · arrives 10:26 AM PT
Forecast issued Tue 6:00 AM ET · 29h before departure
Watch this flight
Other days
Today 39%
Wed 10/28
Thu 10/29 19%
Fri 10/30 38%
Sat 10/31 24%
Sun 11/1 40%
Mon 11/2 37%
Odds over time
Arrive at SFO more than 15 minutes late?
22%
chance · ±5 pts
+6 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
22%
Leave 15+ late
17%
Arrive 1h+ late
6%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.4d
2d
Now
12h
6h
Departs
Lands
Arrive at SFO more than 15 minutes late?
Calm-weather odds: 19% · changed +6 pts in 24h
+6 pts
22%
Yes 22%
No 78%
Leave DEN more than 15 minutes late?
Calm-weather odds: 18% · changed +1 pt in 24h
+1 pt
17%
Yes 17%
No 83%
Arrive at SFO more than an hour late?
Calm-weather odds: 5% · changed +1 pt in 24h
+1 pt
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to SFO?
On time or early
78%
15–30 min late
12%
30 min–1 hour late
4%
1–2 hours late
4%
Over 2 hours late
1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Arrivals into SFO at that hour are often late
↑
SFO is prone to delays
↑
This flight has been late 61% of the time recently
↓
Mostly benign weather forecast at SFO
↓
Wednesdays in October are usually quieter than average
Weather at each end
DEN (origin)
Gusts 22 kt Ceiling 100 ft Visibility 10+ mi Precip none
SFO (destination)
Gusts 13 kt Ceiling none (clear) Visibility 10+ mi Precip none
How this resolves
Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.
Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.